• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
PowerPoint
 

PowerPoint

on

  • 4,010 views

 

Statistics

Views

Total Views
4,010
Views on SlideShare
4,010
Embed Views
0

Actions

Likes
5
Downloads
271
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    PowerPoint PowerPoint Presentation Transcript

    • ENDOCRINE SYSTEM Chapter 11
    • FUNCTION OF THE ENDOCRINE SYSTEM
    • FUNCTION OF THE ENDOCRINE SYSTEM
      • Secretion of hormones or chemical messengers that coordinate and direct activities of target cells and organs
      • Major glands of endocrine system
        • pituitary - thyroid - thymus
        • pineal - parathyroid - adrenals
        • pancreas - gonads
    • HORMONAL CONTROL
      • Negative feedback
        • occurs when there is a drop in the level of a hormone
        • triggers a chain reaction of responses to increase hormones in the blood
    • PITUITARY GLAND
      • Located at the base of the brain and connected to the hypothalamus
      • Divided into anterior and posterior lobes
      • Known as the master gland because of its major influence in body’s activities
    • HORMONES OF THE PITUITARY GLAND
      • Divided into two lobes
        • anterior pituitary lobe is larger and produces seven hormones
        • posterior pituitary lobe is smaller and consists primarily of nerve fibers and neuroglial cells
    • THYROID AND PARATHYROID GLANDS
      • Thyroid glands
        • Located in the anterior part of neck
        • Secretes 3 hormones:
          • Thyroxine
          • Triiodthyronine
          • Calcitonin
    • THYROID AND PARATHYROID GLANDS
      • Parathyroid glands
        • Four glands attached to posterior surface of thyroid
        • Stimulate an increase in number and size of osteoclasts (specialized bone cells)
    • THYMUS GLAND
      • The thymus gland is both an endocrine gland and lymphatic organ
      • The thymus secretes a large number of hormones
    • ADRENAL GLANDS
      • Two adrenal glands located on top of each kidney; each has two parts
        • Cortex - secretes 3 groups corticoids
          • Mineralocorticoids
          • Glucocorticoids
          • Sex hormones
        • Medulla - secretes
          • epinephrine
          • norepinephrine
    • GONADS
      • Gonads - sex organs
        • Ovaries - female sex organ
          • ova
          • estrogen and progesterone
        • Testes - male sex organ
          • sperm
          • testosterone
    • PANCREAS
      • Located behind stomach
      • Functions as:
        • Exocrine gland
          • Secretes pancreatic juices into small intestine to become digestive juices
        • Endocrine gland
          • Produces insulin and glucagon
    • PINEAL GLAND
      • Attached to the third ventricle of the brain
      • Produces the hormone melatonin
        • Amount of light affects the amount of melatonin secreted
        • Causes body temperature to drop
    • OTHER HORMONES PRODUCED IN THE BODY
      • There are many hormones produced throughout the body originating from many different glands and organs
      • Prostaglandins are hormones secreted in various tissues throughout the body
    • DISORDERS OF THE ENDOCRINE SYSTEM
      • Endocrine gland disturbances may be caused by:
        • Disease
        • Infection
        • Hyperactivity
        • Hypoactivity
    • PITUITARY DISORDERS
      • Hyperfunction of Pituitary
        • Gigantism
        • Acromegaly
      • Hypofunction of Pituitary
        • Dwarfism
      • Diabetes Insipidus
        • Caused by posterior lobe dysfunction
    • THYROID DISORDERS
      • Blood tests are done to diagnose
        • Hyperthyroidism
          • Due to overactivity of thyroid gland
          • Hypersecretion of thyroxin
        • Hypothyroidism
          • Due to inflammation of thyroid gland
          • Thyroid isn’t able to secrete enough thyroxin
    • PARATHYROID DISORDERS
      • The parathyroid glands regulate the use of calcium and phosphorus
      • Hyperfunctioning
        • Kidney stones
        • Calcium taken from bones
      • Hypofunctioning
        • Tetany - low levels of calcium affects the nerves
    • ADRENAL DISORDERS
      • Hyperfunction of the Adrenal
        • Cushing’s syndrome
      • Hypofunction of Adrenal Cortex
        • Addison’s disease
    • STEROID ABUSE IN SPORTS
      • Effects of steroid abuse:
        • Liver changes
        • Decreased spleen production
        • Atrophy of testicles
        • Breast enlargement
        • Cardiovascular disease
    • PANCREATIC DISORDERS
      • Diabetes mellitus
        • Ineffective secretion or use of insulin
        • Type I - juvenile diabetes
        • Type II - adult diabetes
      • Treatment
        • Glucose monitoring - Diet
        • Weight reduction - Medication
    • PANCREATIC DISORDERS
      • Tests for Diabetes Mellitus
        • Urine samples
        • Blood samples
          • glucometer (glucose monitor)
          • glycosylated hemoglobin (HbA1c)